An old word used to describe a sex-only relationship. "Receptacle" was made popular by a handsome young Physician character on the 80s television drama St. Elsewhere. The young Doctor said: "I'm not looking for a relationship, I'm looking for a receptacle." For the era, this was quite shocking. President Reagan was in office at the time.

Modern example: "Dude, I just can't handle a relationship that requires meaningful social interaction. I only need a receptacle to ejaculate my goo into."